Window blind headrail



FIG. 1 is a front, end, and bottom perspective view of a window blind headrail showing my new design, shown broken away closer to one end to indicate indeterminate length, it being understood that the contours of the design repeat uniformly along its length;

FIG. 2 is an enlarged front elevational view thereof, it being understood that the rear is a mirror image thereof;

FIG. 3 is an end elevational view as seen from the left in FIG. 1, the other end being a mirror image thereof;

FIG. 4 is a cross-sectional view taken on the line 4--4 of FIG. 2 showing the cross-sectional configuration thereof;

FIG. 5 is a front, end, and top perspective view of FIG. 1;

FIG. 6 is a greatly enlarged top plan view thereof; and,

FIG. 7 is a bottom view of FIG. 6. 

The ornamental design for a window blind headrail, as shown and described. 